| 204.383 Atomic Weight | |
| 81 Atomic Number | 3, 1 Oxidation States |
| 1746 Boiling Point, K | |
| 577 Melting Point, K | Tl Symbol |
| 11.85 Density at 300K | |
| [Xe] 4f14 5d10 6s2 p1
Electron Configuration | |
| Thallium | |
| Tl Symbol | hcp Crystal Structure |
| 1.48 Covalent Radius | 2.04 Electronegativity |
| 1.71 Atomic Radius | 162.09 Heat of Vaporization |
| 17.2 Atomic Volume | 4.27 Heat of Fusion |
| 6.108 Ionization Potential | 5.6 Electrical Conductivity |
| 0.129 Specific Heat Capacity | 46.1 Thermal Conductivity |